Can I buy iPad Pro 2022 online?

The sixth generation iPad Pro (i.e., the 2022 iPad Pro M2 model) is only available through Apple Authorised or independent retailers - such as Amazon.

You will only find current model devices at Apple's online and physical Apple Stores. For iPad Pro, this is the iPad Pro M4.

Discontinued models are no longer available as new from Apple.

You may try locating an officially refurbished model? Refurbished iPad Deals - Apple (US)

iPad Pro is actually withdraw, so there is no official way to buy it now. You can look for rest of stocks in your local country stores but it is difficult.